<template>
  <el-container class="home-container">
    <!-- 页面主体区域 -->
    <!-- 侧边栏 -->
    <el-aside :width="isCollapse ? '64px' : '200px'">
      <!-- 侧边栏菜单区域 -->
      <el-menu
        background-color="#333744"
        text-color="#fff"
        active-text-color="#409EFF"
        unique-opened
        :collapse="isCollapse"
        :collapse-transition="false"
        router
        :default-active="activePath"
      >
        <!-- 一级菜单 -->
        <el-submenu
          :index="item.id + ''"
          v-for="item in menulist"
          :key="item.id"
        >
          <!-- 一级菜单的模板区域 -->
          <template slot="title">
            <!-- 图标 -->
            <i :class="iconsObj[item.id]"></i>
            <!-- 文本 -->
            <span>{{ item.authName }}</span>
          </template>

          <!-- 二级菜单 -->
          <el-menu-item
            :index="'/' + subItem.path"
            v-for="subItem in item.children"
            :key="subItem.id"
            @click="saveNavState('/' + subItem.path)"
          >
            <template slot="title">
              <!-- 图标 -->
              <i class="el-icon-menu"></i>
              <!-- 文本 -->
              <span>{{ subItem.authName }}</span>
            </template>
          </el-menu-item>
        </el-submenu>
      </el-menu>
      <div class="toggle-button" @click="toggleCollapse">|||</div>
    </el-aside>
    <!-- 右侧内容主体 -->
    <el-container>
      <el-header> </el-header>
      <el-main>
        <!-- 路由占位符 -->
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data() {
    return {
      // 左侧菜单数据
      menulist: [
        {
          id: 125,
          authName: "应用列表",
          path: "users",
          children: [
            {
              id: 110,
              authName: "用户列表",
              path: "users",
              children: [],
              order: null,
            },
          ],
          order: 1,
        },
        {
          id: 103,
          authName: "权限管理",
          path: "rights",
          children: [
            {
              id: 111,
              authName: "角色列表",
              path: "roles",
              children: [],
              order: null,
            },
            {
              id: 112,
              authName: "权限列表",
              path: "rights",
              children: [],
              order: null,
            },
          ],
          order: 2,
        },
        {
          id: 101,
          authName: "商品管理",
          path: "goods",
          children: [
            {
              id: 104,
              authName: "商品列表",
              path: "goods",
              children: [],
              order: 1,
            },
            {
              id: 115,
              authName: "分类参数",
              path: "params",
              children: [],
              order: 2,
            },
            {
              id: 121,
              authName: "商品分类",
              path: "categories",
              children: [],
              order: 3,
            },
          ],
          order: 3,
        },
        {
          id: 102,
          authName: "订单管理",
          path: "orders",
          children: [
            {
              id: 107,
              authName: "订单列表",
              path: "orders",
              children: [],
              order: null,
            },
          ],
          order: 4,
        },
        {
          id: 145,
          authName: "源码分析",
          path: "reports",
          children: [
            {
              id: 146,
              authName: "数据报表",
              path: "reports",
              children: [],
              order: null,
            },
            {
              id: 107,
              authName: "vue源码",
              path: "orders",
              children: [],
              order: null,
            },
            {
              id: 107,
              authName: "axios源码",
              path: "orders",
              children: [],
              order: null,
            },
            {
              id: 107,
              authName: "订单列表",
              path: "orders",
              children: [],
              order: null,
            },
          ],
          order: 5,
        },
      ],
      iconsObj: {
        125: "iconfont icon-user",
        103: "iconfont icon-tijikongjian",
        101: "iconfont icon-shangpin",
        102: "iconfont icon-danju",
        145: "iconfont icon-baobiao",
      },
      // 是否折叠
      isCollapse: false,
      // 被激活的链接地址
      activePath: "",
    }
  },
  created() {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem("activePath")
  },
  methods: {
    logout() {
      window.sessionStorage.clear()
      this.$router.push("/login")
    },
    // 获取所有的菜单
    async getMenuList() {
      // const { data: res } = await this.$http.get("menus")
      // if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      // this.menulist = res.data
      // console.log(res)
    },
    // 点击按钮，切换菜单的折叠与展开
    toggleCollapse() {
      this.isCollapse = !this.isCollapse
    },
    // 保存链接的激活状态
    saveNavState(activePath) {
      window.sessionStorage.setItem("activePath", activePath)
      this.activePath = activePath
    },
  },
}
</script>

<style lang="less" scoped>
@import "../assets/css/home.less";
.home-container {
  height: 100vh;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}

.el-aside {
  background-color: #333744;
  position: relative;
  .el-menu {
    border-right: none;
  }
}

.el-main {
  background-color: #eaedf1;
}

.iconfont {
  margin-right: 10px;
}

.toggle-button {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
